文献类型：期刊文献

英文题名：Effect of CeO₂ Content on Microstructure and Wear Resistance of Laser-Cladded Ni-Based Composite Coating

作者：Zhang, Bingqing[1];Shi, Wenqing[1,2,3,4];Lin, Yiming[1];Jiang, Longwei[1];Wang, Lijun[2];He, Kuanfang[3]

机构：[1]Guangdong Ocean Univ, Coll Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Sch Ship & Shipping, Zhanjiang 524088, Peoples R China;[3]Foshan Univ, Coll Mech & Elect Engn & Automat, Foshan 528000, Peoples R China;[4]Guangdong Ocean Univ, Sch Mat Sci & Engn, Yangjiang 529500, Peoples R China

年份：2024

卷号：12

期号：6

外文期刊名：LUBRICANTS

收录：SCI-EXPANDED(收录号：WOS:001257532400001)、、WOS

基金：This research was funded by the National Natural Science Foundation of China, grant No. 62073089; Zhanjiang science and technology plan project, topic number 2023A216; and Yangjiang science and technology plan project, project no. SDZX2023004. The authors are also grateful for the support from Guangdong Provincial.

语种：英文

外文关键词：laser cladding; rare-earth oxides; microstructure; grain refinement; wear resistance

外文摘要：In order to improve the wear resistance of 45 steel, in this study, WC/Ni60 composite coatings with different CeO2 additions (0, 1, 2, and 3 wt%) were prepared on 45 steel by the laser cladding technique; the experimental analysis was carried out by means of scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD), a Vickers hardness tester, and a friction and wear tester. The results show that CeO2 had little effect on the phase composition of the coatings; however, with the increase in CeO2 content, the CeO2 played a key role in refining the grains of the coating, thus reducing the generation of cracks. In addition, CeO2 could effectively strengthen the internal structure of the coating and improve its microhardness and wear resistance. Particularly noteworthy is the observed reduction in both the friction coefficient and mass loss of the coating when the CeO2 addition reached 2%. This suggests an enhancement in the tribological performance of the coating at this concentration.